Process for treating textiles



Patented Dec. 2,, 1941 2,264,490 Pnocnss non 'rnna'rmc TEXTILES Ernst Waltmann, Krefeld," Germany, assig'nor to Heberlein Patent Corporation, New York, N. Y., a. corporation of New York.

No Drawing. Application December-31, 1937, Se-

rial 1937 4 Claims.

This invention relates to treating textile materials and particularly to dyeing them and rendering them water-repellent and to products obtained thereby. It also relates to chemicals and processes for producingthe same, useful in so treating the textile material.

I have found in accordance with my invention No. 182,915. In Germany- January 2,

. Fibers of ""cellulosic material which. have been treated by such agents in accordance with my.

invention are well suited to mixture with wool fibers. from can be'dyed in the usual manner with dyes which incline two-acidity, whereby a considerable that for the purpose of preparing fibers for dye ing, I may treat them with ethers .containing a basic nitrogen atom. Such treatment in the case of cotton or other cellulosic material is ca pable of animalizing'the material, that is of imparting to it characteristics of animal fibers such as wool, whereby the material so treated can be dyed with acid dyes. in accordance with my invention that where the In addition I have found" compounds employed for treatment are of higher molecular weight there is imparted to the fibers, in addition to the animalizing, a permanent power ofv resistance to wetting by water.

Processes have been already proposed for introducing into viscose solution an addition of casein, albumen or other nitrogenous substances,

and it has also been .propo'sedto treat alkali or alkaline earth-compounds of cellulose with al-' kalizing nitrogenous agents. These proposed processes, however, are either expensive or do not produce a uniform result in the fibers treat- :d and are not practical for large scale producicn. Y

An important object of my invention accordingly is to provide an improved process of the kind described which shall do away with atleast some'of the difllculties found in the heretofore proposed processes and to produce a series of improved products. I

The invention comprises the novel products as well as the novel processes and steps of processes according towhich such productsare manufactured, the specific embodiments of which are described hereinafter by way of example and in accordance with which I now preferto prac- I tice the invention.

saving in dye is attained, as well as saving ,in the dyeing process.

Falling under the class of ethers used for impregnating the textile material and which cause itto become water-repellent upon baking are quaternary ammonium salts of methyl halogen ethers containing a basic nitrogen atom. other than that of said ammonium radical, and also containing an aliphatic radical of at least '10 carbon atoms, said'basic nitrogen atom'being attached to said aliphatic radical.

Although the process so far as it concerns dyeing is particularly directed to rendering cellulosic material capable of being dyed by acid dyes, nevertheless .wool itself may be .treated by any of the compounds herein mentioned and if the compounds of my invention contain more than ten carbon atoms in a straight chain they 'the manner in which I now will produce in the wool in addition awaterrepellenc'e.

The following are examples of embodiments of I prefer to practice the invention in the treatmen of textiles. It is to be understood that. the invention, 'is not limited thereto except as indicated in the appended claims.

pregnated at room temperature by an aqueous solution which contains per liter15 grams of the quaternary pyridinium salt of the methyl chloride In carrying out myimproved process I employ others as stated above. -These-compounds must contain in ,addition to the active group Whicheflects the action with the cellulose, an

aliphatic or cyclic radical of at least fourcarbon atoms and besides in this radical at leas one basic nitrogen atom. v

The ethers can be brought into water-soluble condition in the form of their quaternary bon atoms in a straight chain, there is imparted to the fibers in addition to the animalization also a permanent power. of resistance. to wetting with water.

-Polar Red 3' B Schulz Dyestufi derivative which has been obtained as described below by double decomposition of octadecane nit ile CnIhaCN with'trioxymethylene and hydrochloric acid gas. After the impregnationthe material is centrifuged, dried at C. and exposed for about 6 hours to a temperature of about C. (194 F.). The viscose spun rayon which has been treated in this wayls dyed-by treating it with Grams per liter table, '7, edi

tion No. 47,5 0.1 Sodium sulphate (N82SO4) 5 Acetic acid 1.

I at a temperature of 90-l00 C., and. the dyed 4 material at the same time manifests water-repelling properties.

2. Viscose spun rayon (cell wool lution which contains per liter 20 grams of the quaternary pyridine salt of the methyl chloride compound prepared from octadecane cyano- The mixed fabrics manufactured thereflock is im-. pregnated-at room temperature in an aqueous soacid dyes which comprises impregnating textile material with a quaternary ammonium salt 01 basic nitrogen atom being attached to said aliphatic radical, and baking the impregnated material at a temperature above about 90 C. to produce water-repellence in said textile material.

8. A process for rendering textile material water-repellent and to improve its afllnity for acid dyes which comprises impregnating textile material with a quaternary ammonium salt of a methyl halogen ether containing a basic nitrogen atom other than that of said ammonium radical, being the reaction product of octadecane nitrile, trioxymethylene, hydrochloric acid and pyridine, and baking the impregnated material at a temperature above about 90 C. to produce waterrepellence in said textile material.

4. A process according to claim 1 in which cellulosic material is used and the quaternary ammonium salt contains asaturated alkyl radical of at least 10 carbon atoms in addition to at least the single basic nitrogen atom.

ERNST WALTMANN.

- v CERTIFICATE OF CORRECTION. I Patent No. 2,26l h90. Decenber 2, 19th..

' ERNST wA TpANN.

It is hei'eby certified that error appeazps in'the printed specifice'l z ion of the above numbered patent requiring corx ect zion 'as follows: l;first column, line '45, for the word j"othens" reed -'-ethers--; and. second column, lipe ho-hl, fan "nit 11c" read -n 1tr11e-'- and that the, said. Let ten Patent should be read wijzh this correction therein that the. same may conform 'to the record of the case in the Patent Office.

Signed. mid sealed this 6th day of January, A. D. 1911.2.

Henry Van Arsdale, (Seal) Acting Commiesioner of Patents. 

